Implement for stropping razor-blades.



W. H. NIGHOLLS. IMPLBMENT FOR STROPPING RAZOR BLADES. APPLICATION FILED JAN.21.1908.

911,839. Patented Feb. 9, 1909.

c5270 2gb wif-755555.

Fig. 1

uivrrnDsTATEs WALTER H. NlUllOLLS, UF UHARLESTUWN, MABlSAUHUS'llS.

IMPLEMENT FORl STBOPPING RAZOR-BLADES.

Specification of Letters Patent.

Patented. Feb. 9, 1.909.

Application filed January 37, 1908. Serial No. 412,690.

.7 'o all. whom if may concern.'

lle it known that l, WALTER ll. .N ioHoLLs. a citizen of the VUnited States7 residing et Charlestown, in the county of Sull'olk and State ol` Massachusetts, have invented certain new and useful Improvements in Implements for Stropping ,Razor-Blades, ol which the followingr is n specification.

My invention relates to implements for stropping razor blades, and the objects of my improvement are convenience and elliciency, whereby the detachable blades of safety rnzors iney be held for strojiping,r and the propel` ti )ping` or rocking,r motion of the blade may e eli'eeted automatically by merely moving the implement, together with e blade held therein, beck and forth upon a razor strop.

Ill-the accom n-nying drawing-Figure 1 is ya plan view o my implement with a razor blade held therein, .and a. portion of a razor strop upon which the blade holder of the im pleinent rests. Fig. 2 is a sectional view oi the sanne on the line a; .i ol' Fig. l., Sonie of the parts being shown in elevntion. Fig. Il is a plan view ol' the blade holder cap. Fig. 4 is n plan view of ai well known forni of safety razor blade. Fig. 5 is an enlarged trnnsversc section of the implement on the" line y y of Fig. (5 is n. tramsverse section of the same on. the line s s oll Fig; holder tipped to the l' ull extent of its rocking.;` movement. Fig'. 7 is a detached plan view of the bln-de holder, less the cap and butt. Fig. 8 is a. side elevation or edge view of the same. Fie. l) is a transverse section ol' the blade holter nud :i bladeheld therein. the

lane ol' section being on the line 2 of Fig. l. igt 1U is e dol ached elevation of u portion oll the holder shrink, the socket to which lho seid shank is jointed, sind 'ru' spring con nected therewith. j

A, designates the lnindle which is hollow for substantially its whole length. The butt end is closed by a plug l() which muy be held in pince by n pin. l1, and which plug is provided with n socket l2 forthe hall 13 olI the jointed shank 14. .The other end ofthe bnndle is provided with two lixed l'ulcruni pins or lugs 1.3, which lugs, as shown, nre formed un the outer end ol un oval tube lo, that is secured within, the handle by pins 17. A spiral spring 18 is secured by one. end, es at 19, Figs. if', sind 1U, to the joint-ed shank 14, and by its other end to the plug or socket, es at 2U, Fig( 1U, so thin when thel shank is per- ,Z, with the blade e lftially rotated in either direction it will pur l, the said spring under sullicient tension to re l turn the said shank back again to ils former osition, as soon as the shank is released. `he outer end ol the jointed shank is tubular i t receive the stein 21 of the hlnde holder ll, while in turn the said end of the shank is re rcived in the blade holder butt .22 and the two are rigidly secured to the said shank by the pin 23. That end oi' the blade holder butt .22 that lies next to the end of the lmndle A sind in the pleno of the fulrruln'lugs 15, is hollow und provided with two inwardly facing,r re cesses or notches on its opposite sides for receiving;r one of the said lugs into one of the said notches when the other one ol' the said lugs is disengaged from its notch., as shown for the upper in or lug and notch in Figs. l 5 end 6. Hal way between the two notches the stops 33 are placed to limit the tipping or rockin movement -of the blade holder rele tively o the handle, and also to limit the ro tary movement of the shank, so that it rannot he turned far enough to .set the nielal oi' the spring 18.

The main portion or bodv ol the blade l holder B is ol' alittle lesswidththanthe bln-drY 25 to be strapped, and long enough to receive a blade on one of its broad. sides, which side serves as the blade sent and from which the studs 26 proj ect, the seid studs being slotted as l ut 27, Fig. 8. The other side oi' the blade i holder may be provided with a central longi- 28 and the' projection of the said tudinel rib rib should be about the saine es the projec- 1 tion of the studs. Thefaceor sent side of the holder 24 may be slightly de ressed or hol- 'lowed out to forni a longitudinal recess 34, Figs.V 7 and E), end then slant outwardly from j the side edgesof the said recess to lheodges of the blade holder, so that the brood side of the blade nslaid u )on the holder without pressure, will be slipY ltly elevated above the edges ol' theholder. Thestudson theholder lire of a size end so located ne to pass through two of the usuel holes 2S), Fing. 4, of the blade 25. The cop '.24 is irovidod with key hole slots to receive ille slotted studs 126, the said oep being {irst placed on the blade with slots and then movet lengthwise towards the handle to bring the edges of the metal of the cap at the narrow part ol the key hole slots into the slots 27 in the sides ol' the studs 26, as shown in Fig. 1, to clamp the blade firmly to the blade holder and with its two edges tit) the studs in the hir er parto'l the hey hole ing the blade.

rejecting from the two edges of the blade liohler, ns shejlwn. 'l he Cep is formed of thin sheet metal and may he resilient. It is provided with e. central sweging or depression 31 to serve es e. finger grasp for convenience in forcing the Cep longitudinally into place and also to serve as e :rejection to assist in holdl e oep is mede e little conn cave on .its under fece so es to press upon the blade neer its opposite ed fee with a tendency to slightly deflect the bles e while the central depression 3l hears upon the blade et its middle portion ne shown in Fig. El, thereby more securely holdingl the hlstde in hier. 'l hese ble-des ere of thin motel und so resilient. es to he easily deflected, and thus il the holder he constructed es described it is im-` material whether the cap is rceilient or not. With e blade thus secured to the holder, the blade helder ie placed u'ion a strop C, ce shown in Fi s. 1 and 2. l he strop Sup orte the blade ho der B while the operator leere down on the handle A, thereby bringing the lower one of the fulcrunl pins or lugs' l5 into the lower fulcrum recess or notch H2 of the holder butt 22, 7while the upper fulcrum pin is freed from its notch or recess als shown in Figs. 2, and 6. 'Ille jointed shank ermite the blade holder to thus move up and own'to en age and dier-,ngae-the i'elcrum pins et fait er side of the blade holder butt. The handle is then moved in the proper direction to move the holder and cttcohed hlede lengthwise of the stro The friction ci the strop on the holder Wi l. rock the holder on ite Fulcrum and tip the blade and holderrom the position for the holder shown in Fivg. 5, to e proximetely tho position shown in l'ig. 6, t rocking being towards one Side or the other, accordingl to the direction that the imple ment is moved on. thestrop. 'l his will. rock the blade so :ze to prees its edge against the Surface of the strop, thus putting the :sprinCf 18 under tei-leien. 'lhis rocking motion (il the holder und shank, ce well es its up end4 down. swinging movement, ermitted by ree-son of the universel or bel end socket joint. As soon es the movement of the im plenient over the strop surface is stopped, the spiral spring 1S irmne-.dietely rocks the holder so es to reise the edge of the blade from the strop, preparatory to a return stroke which return stroke Will tip the hlade in the o .posite direction to strop ite opposite edge. y turning over the implement and presentiuh the opposite broad side to the strop, the other one of the lulcruin plus or lugs comes into action and the op ,oslttl side ofthe blade may he stropped at .oth edges in the inonder before described, 'lhc tube 16 on the end of which the fulcrxiro pins or lugs are formed, vmmh-2, .wel in order to give Suflicient speci.' lor the shank 1.4 to operetein when the holder thw-` ro3l efl.

By my i;

of a1V razor may be conveniently held in the impement and when so hed may be tipped or rocked automatically to bring its opposite edges alternetey against the el' rop surface hy mercy moving thc holder heck and forth when resting upon the strop. The opposite edges of 'the other side ol' the blade may be stroppcd in the seme manner l) merely turning the implement over to o moge the 'fulcrum on which the impcrnent rocks.

`1 claim es my invention 1. An i1op.ement for stropping blades, comprising a doulne laced holder, e hanrhe in which the seid blade holder isiloosmy mounted. for rocking` there ou., and dupdcnte l'ailcrum devices on oppon sito sides of the seid holder :rn-l handle, the seid l'hlorurn devices on one side operating; to rock the holder when one ol its laces in l'rictionol contant with the strop und those on the opposite eide opereting to roel: the holder when. its other fece is in .lrictionel contact with the strop.

2. An implement l'or stro .'ping razor blades comprising; a, blade holder having e shank., a hollow blade holder butt rigidly mounted on the seid shank and. having en inwardly lacing luleronl recess, o handle within which the seid sh ank is loosely mountblade cd, e .fulerunl lug rigidly fixed on. the seidhnudie for engaging; the Fulcrum recess ol' the smid blade holder ott for rocking the seid holder on the Seid fixed l'ulcrunx 'log ol' the handle.

il. ln un implement lor `dropping razor blades, the con'lbinetion of c hendlo with a blade holder, :i shank for the seid blade holder mounted within the said handle by menne ol' :t Iuniverseljoint., fulcrnm lugs fixed et the outer end of the said handle, end ey holder britt mounted on the seid Shank. by the outer cnd',of the handle, the said holder 'Hott having fulcmm recesses cech 'for receiving: the adju-cent ono of the seid f1 i'lcrum lugs while the other loir-rum lug if; rlisenraged from its recess.

4. ln un imilen'ient for etropping razor` blades, the comoination of n. handle having e lug et its outer end with e rocking hludo holder, e hlede holder butt mounted on the blade holder opposite the said end of the seid handle, the sold butt havingy inward-ly lacing lug recesses on opposite sides for engraving the seid end of the handle to rock the blade holder when leid either side up oh the strop.

5. ln on implement for stroppng roem hlmlos, the combination of e handle with n blade holder mounted within the said handle by on universal joint, n spring attached to rh a said shank und handle for returning the sold shank and holder to a given. position when rotated ou the seid shank in either direction, l'ulizrum luge fixed at the outer end of ille seid handle, and o holder hott mount Aincrement e doch# edge blade j ed on the seid shank. by the cuter end of the .l the outer end of the said handle butt mounted on the said blade liolder by the said handlepthe said holder butt having inwardly facing fuicrum recesses on its opposite sides for engaging the said fulcrum lugs, one at a time. -v

6. In an imp.ement -for stropping razor blades, the combination of a handle withga blade holder mounted within the said handle by a universal jointf, fulcrum pins fixed at and aholder outer end of the said handle, the said holder butt having fulcrnm`1'ecess'es, each i'orleQl ceiving the adjacent'one of the said fulcrum, pins whi.e the other is disengaged from its recess, the said' butt having aldo stops for the said lugs on opposite sides between the said recesses.

7. In an implement for stropping razor blades, the combination of a handle with a double faced blade holder lnountedthereon for rocking on either side with a tipping `motionin either direction, the said holder having a wide body portion with a central longitudinal rib on one side and a blade seat andslotted studs on the other side, and a cap havin key hole slots for engaging the said `slotte* Ystuds and clamping a lade on the said seat, the projection of the said longitudinal rib from' the blade seat and that ol' the studs being nearly the same, whereby the blades will be presentedto the strop at ap- 

